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You are not alone, HLODS and Streaming is a very common issue... Using ISM components and data layers instead of world partition can be just as powerful or more well tuned. Especially with a good verse object pooling of devices.

I would not use a new volume, which is more work, I would go about disabling affect AI on all the actors with the bulk edit tool. I don't know how much it will improve the scene, but it would reduce some work load, as I am sure the nav mesh has to update at runtime due to building and destruction of the world.

You should be able to, however Components are hidden by default in the outliner. You can select and "uncheck" hide all components in the outline, then you will see all the components, and can search for anything you want to filter it. In your outliner window in UEFN, you should have a settings icon with "hide actor component" checked off, uncheck that!

Instancing and merged mesh hlods in rendering, seemed to be about equal when fully optimized (single ISM per mesh in the whole world.) But, using a merged mesh hlod will increase your package size for the new mesh and textures it generates. The about equal part, is how fast it will render (fps) on the client device such as a switch lite. If you are blocking view with fog, then you could totally unload those cells with the HLOD max view distance in the project settings... I think is where we found it. Having something unloaded (spatially streamed out, or I believe a disabled data layer will unload the actor as well) is more efficient then still rendering any representation of the base. So if you block view with fog, I would unload the base instead of using an ISM or mergedmeshhlodmesh to still represent it in the world. Since you cannot see it.

If you use ISM/HISM in your actors, there is not a huge reason to convert or unify them later. But, it would run faster on switch lite when you have 1 ism per mesh instead of multiple. Do you need it to run that fast (fps) or not?

It should on the UE5 engine side. It all depends on how MUCH / how DENSE your world is! If your world is super simple, doing this would still reduce the server side and some client side workloads! Esp hiding shadows, reducing WPO distances,

Thank you <3 😎😎😎

Keep pinging me and let me know your progress and we can work through it!

@@GameDevMicah Thank you. Thank you.

Thank you very much! These types of kind comments keep me going! Cheers!

Here is fine too! Discord is GameDevMicah, and gamedevmicah@gmail.com :)

@@GameDevMicah Thanks You!